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Report of the sub-committee on the environment and health.

Table 4.15
Pesticides and degradation products in rainwater samples collected in the period September 1996 to November 1997. In all, 13 samples were collected over a period of 2-3 weeks in Lorup, Gisselfeld and Gadevang on Zealand. DMU analysed the samples for 36 active ingredients and 8 metabolites. The concentrations are given in microgramme per litre. It will be seen that for isoproturon and DNOC, the concentration exceeds the drinking water limit of 0.1 microgramme per litre (marked in bold) (Felding 1998a).
Extracted

Isoproturona

Metamitron

DNOCb

Mechlorpropc

Methabenzthiazuron

2-hydroxyterbuthylazineM

TerbuthylazineM

2,4-Dc
Sept. 96

0.007

n.d.

0.61

0.005

n.d.

n.d.

n.d.

n.d.
Oct. 96

0.20

0.019

4,5

0.23

n.d.

n.d.

n.d.

n.d.
Oct. 96

0.054

0.039

0.69

0.07

n.d.

n.d.

n.d.

n.d.
Nov. 96

0.017

0.038

0.89

0.07

n.d.

n.d.

n.d.

n.d.
Nov. 96

n.d.

n.d.

0.77

0.030

0.013

n.d.

n.d.

n.d.
April 97

n.d.

n.d.

0.82

0.016

0.008

0.096

n.d.

n.d.
May 97

n.d.

n.d.

0.31

0.015

n.d.

0.098

0.008

n.d.
June 97

n.d.

n.d.

0.57

0.012

n.d.

n.d.

0.009

n.d.
Aug. 97

n.d.

0.024

1.6

n.d.

n.d.

n.d.

n.d.

n.d.
Sept. 97

n.d.

n.d.

0.38

0.005

n.d.

n.d.

n.d.

0.046
Sept. 97

0.17

0.088

1.3

0.068

n.d.

0.015

0.008

0.059
Oct. 97

n.d.

n.d.

0.44

0.016

n.d.

n.d.

n.d.

0.013
Oct. 97

0.29

n.d.

0.47

0.076

n.d.

n.d.

n.d.

n.d.

n.d. = not detected; a = ban recommended in 1998
b = banned; c = banned with dispensation in 1997
M = metabolite (of atrazine)

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